package Work0511;

public class DriverTractor {
	private double load;
	private double volume;

	public DriverTractor(double load, double volume) {
		this.load = load;
		this.volume = volume;
	}

	public double getLoad() {
		return load;
	}

	public double getVolume() {
		return volume;
	}

	public String start() {
		return "启动";
	}

	public String accelerate() {
		return "加速";
	}

}
